Fixed the vacuum leak caused by age and heat that cracked the line. Was pulling my injectors when I pushed on the hose and broke it in half. heat and age made the plastic brittle. this new hose kit solved one of the issues I was having, "Bad idle" studdering at stop! the rubber boot at the crankcase elbo had cracked years ago and I repaired with goo "Silicone rubber" I should of changed it out then.